better buoyancy but still wip

src/net/torvald/terrarum/CreditSingleton.kt

@@ -347,11 +347,11 @@ $BULLET Foleys:
 ℗ 2011, 2013, 2015, 2020, 2021 Klankbeeld
 Sound from <https://www.freesound.org/people/klankbeeld>
 
-    - effects/steps/GRSS.*.ogg
-    - effects/steps/GRVL.*.ogg
-    - effects/steps/ROCK.*.ogg
-    - effects/steps/SAND.*.ogg
-    - effects/steps/WOOD.*.ogg
+    - effects/{mining|steps}/GRSS.*.wav
+    - effects/{mining|steps}/GRVL.*.wav
+    - effects/{mining|steps}/ROCK.*.wav
+    - effects/{mining|steps}/SAND.*.wav
+    - effects/{mining|steps}/WOOD.*.wav
     - effects/door/wooden_open.*.ogg
     - effects/door/wooden_close.*.ogg
 ℗ 2020, 2021, 2022 Nox Sound
@@ -373,12 +373,12 @@ Sound from <https://freesound.org/people/joedeshon>
 ℗ 2019 DrinkingWindGames
 Sound from <https://freesound.org/people/DrinkingWindGames>
 
-    - effects/explosion/bang_bomb.ogg
+    - effects/explosion/bang_bomb.wav
 ℗ 2019 Richwise
-Sound from <https://freesound.org/people/richwise>
+Remixed sound from <https://freesound.org/people/richwise>
 
-    - effects/explosion/fuse.ogg
-    - effects/explosion/fuse_continue.ogg
+    - effects/explosion/fuse.wav
+    - effects/explosion/fuse_continue.wav
 ℗ 2012, 2015 j1987 and ScouseMouseJB
 Remixed sound from <https://freesound.org/people/j1987> and <https://freesound.org/people/ScouseMouseJB>
 
@@ -394,6 +394,11 @@ Sound from <https://freesound.org/people/CuriousTorvald/>
 ℗ 2013 Ubikphonik
 Sound from <https://freesound.org/people/UbikPhonik/>
 
+    - effects/throwing/throw_low_short.wav
+℗ 2023 Killerkipler
+Remixed sound from <https://freesound.org/people/killerkipler/>
+
+
 
 $BULLET Impulse Responses:
 

src/net/torvald/terrarum/gameactors/ActorWithBody.kt

@@ -13,12 +13,11 @@ import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZED
 import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZEF
 import net.torvald.terrarum.blockproperties.Block
 import net.torvald.terrarum.blockproperties.BlockProp
-import net.torvald.terrarum.blockproperties.Fluid
-import net.torvald.terrarum.blockproperties.FluidCodex
 import net.torvald.terrarum.gamecontroller.KeyToggler
 import net.torvald.terrarum.gameitems.ItemID
 import net.torvald.terrarum.gameparticles.createRandomBlockParticle
 import net.torvald.terrarum.gameworld.BlockAddress
+import net.torvald.terrarum.gameworld.FLUID_MIN_MASS
 import net.torvald.terrarum.gameworld.GameWorld
 import net.torvald.terrarum.itemproperties.Calculate
 import net.torvald.terrarum.modulebasegame.TerrarumIngame
@@ -690,10 +689,7 @@ open class ActorWithBody : Actor {
             feetPosPoint.set(hitbox.centeredX, hitbox.endY)
             feetPosTile.set(hIntTilewiseHitbox.centeredX.floorToInt(), hIntTilewiseHitbox.endY.floorToInt())
 
-            submergedHeight = max(
-                getContactingAreaFluid(COLLIDING_LEFT),
-                getContactingAreaFluid(COLLIDING_RIGHT)
-            ).toDouble()
+            submergedHeight = getSubmergedHeight()
             submergedVolume = submergedHeight * hitbox.width * hitbox.width
             submergedRatio = if (hitbox.height == 0.0) throw RuntimeException("Hitbox.height is zero")
                     else submergedHeight / hitbox.height
@@ -712,6 +708,11 @@ open class ActorWithBody : Actor {
 //        isStationary = (hitbox - oldHitbox).magnitudeSquared < PHYS_EPSILON_VELO
         isStationary = isCloseEnough(hitbox.startX, oldHitbox.startX) && // this is supposed to be more accurate, idk
                        isCloseEnough(hitbox.startY, oldHitbox.startY)
+
+
+        if (this is IngamePlayer) {
+            printdbg(this, "Submerged=$submergedVolume   rho=$tileDensityFluid")
+        }
     }
 
     fun getDrag(externalForce: Vector2): Vector2 {
@@ -1507,8 +1508,29 @@ open class ActorWithBody : Actor {
     // TODO: as for the platform, only apply it when it's a feet tile
 
 
+    private fun getSubmergedHeight(): Double {
+        if (world == null) return 0.0
+        val straightGravity = (world!!.gravitation.y > 0)
 
-    private fun getContactingAreaFluid(side: Int, translateX: Int = 0, translateY: Int = 0): Int {
+        val dbgTYLs = HashSet<Int>()
+
+        val txL = (hitbox.startX / TILE_SIZED).floorToInt()
+        val txR = (hitbox.endX / TILE_SIZED).floorToInt()
+        var hL = 0
+        var hR = 0
+        for (q in 0 until hitbox.height.toInt()) {
+            val y = if (straightGravity) hitbox.endY - q else hitbox.startX + q
+            val ty = (y / TILE_SIZED).floorToInt()
+            if (world!!.getFluid(txL, ty).amount >= FLUID_MIN_MASS) hL += 1
+            if (world!!.getFluid(txR, ty).amount >= FLUID_MIN_MASS) hR += 1
+            dbgTYLs.add(ty)
+        }
+
+        // returns average of two sides
+        return (hL + hR) / 2.0
+    }
+
+    private fun xxxxgetContactingAreaFluid(side: Int, translateX: Int = 0, translateY: Int = 0): Int {
         if (world == null) return 0
 
         var contactAreaCounter = 0
@@ -1621,7 +1643,7 @@ open class ActorWithBody : Actor {
      * F(bo) = density * submerged_volume * gravitational_acceleration [N]
      */
     private fun applyBuoyancy(): Vector2 {
-        val rho = FluidCodex[Fluid.WATER].density //tileDensityFluid // kg / m^3
+        val rho = tileDensityFluid // kg / m^3
         val V = submergedVolume / (METER.pow(3)) // m^3
         val g = world?.gravitation ?: Vector2() // m / s^2
         val F = g * (rho * V / SI_TO_GAME_VELO) // Newtons = kg * m / s^2

src/net/torvald/terrarum/gameworld/GameWorld.kt

@@ -263,6 +263,8 @@ open class GameWorld(
     fun coordInWorldStrict(x: Int, y: Int) = x in 0 until width && y in 0 until height // ROUNDWORLD implementation
 
     fun renumberTilesAfterLoad() {
+        printdbg(this, "renumberTilesAfterLoad()")
+
         // patch the "old"map
         tileNumberToNameMap[0] = Block.AIR
         tileNumberToNameMap[1] = Block.UPDATE
@@ -307,6 +309,8 @@ open class GameWorld(
         }
 
         BlocksDrawer.rebuildInternalPrecalculations()
+
+        printdbg(this, "renumberTilesAfterLoad done!")
     }
     
     /**
@@ -769,7 +773,7 @@ open class GameWorld(
 
         val fluidNumber = tileNameToNumberMap[fluidType] ?: throw NullPointerException("No such fluid: $fluidType")
 
-        if (fill > WorldSimulator.FLUID_MIN_MASS) {
+        if (fill > FLUID_MIN_MASS) {
             //setTileTerrain(x, y, fluidTypeToBlock(fluidType))
             layerFluids.unsafeSetTile(x, y, fluidNumber, fill)
         }
@@ -804,7 +808,7 @@ open class GameWorld(
 
     data class FluidInfo(val type: ItemID = Fluid.NULL, val amount: Float = 0f) {
         /** test if this fluid should be considered as one */
-        fun isFluid() = type != Fluid.NULL && amount >= WorldSimulator.FLUID_MIN_MASS
+        fun isFluid() = type != Fluid.NULL && amount >= FLUID_MIN_MASS
         fun getProp() = FluidCodex[type]
         override fun toString() = "Fluid type: ${type}, amount: $amount"
     }

src/net/torvald/terrarum/modulebasegame/WorldSimulator.kt

@@ -45,7 +45,7 @@ object WorldSimulator {
 
     const val FLUID_MAX_MASS = 1f // The normal, un-pressurized mass of a full water cell
     const val FLUID_MAX_COMP = 0.02f // How much excess water a cell can store, compared to the cell above it. A tile of fluid can contain more than MaxMass water.
-    const val FLUID_MIN_MASS = net.torvald.terrarum.gameworld.FLUID_MIN_MASS //Ignore cells that are almost dry (smaller than epsilon of float16)
+//    const val FLUID_MIN_MASS = net.torvald.terrarum.gameworld.FLUID_MIN_MASS //Ignore cells that are almost dry (smaller than epsilon of float16)
     const val minFlow = 1f / 512f
     const val maxSpeed = 1f // max units of water moved out of one block to another, per timestamp
 

src/net/torvald/terrarum/worlddrawer/BlocksDrawer.kt

@@ -14,9 +14,9 @@ import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZE
 import net.torvald.terrarum.blockproperties.Block
 import net.torvald.terrarum.gamecontroller.KeyToggler
 import net.torvald.terrarum.gameitems.ItemID
+import net.torvald.terrarum.gameworld.FLUID_MIN_MASS
 import net.torvald.terrarum.gameworld.GameWorld
 import net.torvald.terrarum.gameworld.fmod
-import net.torvald.terrarum.modulebasegame.WorldSimulator.FLUID_MIN_MASS
 import net.torvald.terrarum.realestate.LandUtil
 import net.torvald.terrarum.serialise.toBig64
 import net.torvald.terrarum.worlddrawer.CreateTileAtlas.Companion.WALL_OVERLAY_COLOUR